Jacek Caban : win32u: Allow NULL client_menu_name in NtUserRegisterClassExWOW.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: f4b9ff7850d0d55cd0ac4bf383de2aca323d7f4a
URL:    https://source.winehq.org/git/wine.git/?a=commit;h=f4b9ff7850d0d55cd0ac4bf38...

Author: Jacek Caban <jacek(a)codeweavers.com>
Date:   Mon May  2 19:09:44 2022 +0200

win32u: Allow NULL client_menu_name in NtUserRegisterClassExWOW.

Signed-off-by: Jacek Caban <jacek(a)codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard(a)winehq.org>

---

 dlls/win32u/class.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/dlls/win32u/class.c b/dlls/win32u/class.c
index 64ac48cad19..fd74f63291a 100644
--- a/dlls/win32u/class.c
+++ b/dlls/win32u/class.c
@@ -443,7 +443,7 @@ ATOM WINAPI NtUserRegisterClassExWOW( const WNDCLASSEXW *wc, UNICODE_STRING *nam
     class->hCursor       = wc->hCursor;
     class->hbrBackground = wc->hbrBackground;
     class->winproc       = alloc_winproc( wc->lpfnWndProc, ansi );
-    class->menu_name     = *client_menu_name;
+    if (client_menu_name) class->menu_name = *client_menu_name;
     if (wc->hIcon && !wc->hIconSm && user_callbacks)
         class->hIconSmIntern = user_callbacks->pCopyImage( wc->hIcon, IMAGE_ICON,
                                                            get_system_metrics( SM_CXSMICON ),